Shows you systemd services in a nice list sorted by their last (re-)start time.

sortd.py

#!/usr/bin/env python3

import subprocess

services = []

result = subprocess.run(
    ["systemctl", "list-units", "--type=service", "--all", "--no-legend", "--plain"],
    capture_output=True,
    text=True,
    check=True,
)

for line in result.stdout.splitlines():
    if not line.strip():
        continue

    service = line.split()[0]

    try:
        show = subprocess.run(
            [
                "systemctl",
                "show",
                service,
                "-p", "Id",
                "-p", "ActiveState",
                "-p", "SubState",
                "-p", "ActiveEnterTimestamp",
                "-p", "ActiveEnterTimestampMonotonic",
            ],
            capture_output=True,
            text=True,
            check=True,
        )

        props = {}
        for l in show.stdout.splitlines():
            k, _, v = l.partition("=")
            props[k] = v

        services.append({
            "service": props.get("Id", service),
            "state": props.get("ActiveState", ""),
            "substate": props.get("SubState", ""),
            "timestamp": props.get("ActiveEnterTimestamp", ""),
            "mono": int(props.get("ActiveEnterTimestampMonotonic", "0") or 0),
        })

    except Exception:
        pass

services.sort(key=lambda x: x["mono"], reverse=True)

print(
    f"{'SERVICE':55} {'STATE':10} {'SUBSTATE':12} LAST START/RESTART"
)
print("-" * 120)

for s in services:
    ts = s["timestamp"] if s["timestamp"] else "-"
    print(
        f"{s['service'][:55]:55} "
        f"{s['state'][:10]:10} "
        f"{s['substate'][:12]:12} "
        f"{ts}"
    )